Allergies to food, insect stings, medications and latex are most frequently associated with a life-threatening allergic reaction known as anaphylaxis.  The early symptoms may be mild, such as a runny nose, a skin rash or a “strange feeling.” These symptoms can quickly lead to more serious problems, including:  tightness of the throat, trouble breathing, hives or swelling, nausea, vomiting, diarrhea, low blood pressure, rapid heart rate, and cardiac arrest. Understanding anaphylaxis and the things that can trigger this severe allergic reaction will help you manage your condition.  Anaphylaxis needs immediate medical